JPH0636842Y2 - Golf club grip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement in a grip for a golf club.

[Conventional technology]

The grip that is externally fixed to the upper end of the golf club shaft is generally formed of a rubber material for the purpose of preventing slipping during swinging, and the following measures have been taken in order to further improve the anti-slip effect. There is.

Exposing threads such as cotton and nylon on the outer surface of the grip (see the microfilm on which the description and drawings attached to the application for Japanese Patent Application No. 53-68986 (Japanese Patent Application No. 54-171871) are taken) .

On the outer surface of the grip, a short cut thread made of polybenzimidazole fiber is exposed and integrally formed (see the same microfilm).

Attached to the application for heat-shrinking a tube or pipe that has a number of short fiber threads planted on the outer surface of the grip body and can shrink by heating (Actual Application No. 50-155300 (Actual Development No. 52-68371)) (See microfilm on which the description and drawings were taken).

A grip is molded from a silicone rubber composition containing hollow spherical beads and the like, and the outer surface of the grip is polished,
A part of the beads is exposed on the outer surface (JP-A-60-20).
3282).

[Problems to be solved by the device]

However, the above-mentioned conventional technique has the following problems because "threads" or "beads" are used to enhance the anti-slip effect.

That is, since the “thread” is a thin and long stretched fiber and is twisted together and has a certain thickness, if the thread is exposed or planted on the outer surface of the grip, There is a feeling of unevenness that is peculiar to the thread when you grip the. Also, as described in the above microfilm, if the implanted yarn has directionality, this may have to be taken into account. Further, since the beads are hard, if the beads are exposed on the outer surface of the grip, when the grip is grasped, there is a hard and rough feeling peculiar to the beads.

[Means for Solving the Problems]

In view of the above points, the present invention does not have a feeling of strangeness peculiar to a thread or a bead when gripping a grip, and it is not necessary to consider the directionality of the golf ball, and a golf ball that exhibits an excellent anti-slip effect over a long period of time. To provide a club grip, in order to achieve this object, in a golf club grip made of a rubber material which is externally fixed to the upper end of a shaft, a monofilament is mixed into an unvulcanized rubber compound. A grip for a golf club, characterized in that the grip is vulcanized and molded by adding and mixing, and an outer surface of the grip is polished to expose a part of the single fiber on the outer surface.

[Action]

The monofilament is, for example, a monofilament chop product. There are various grades of this monofilament chop product, but as the one used in the present invention, one having a length of 0.1 to 100 denier × several μm to 10 mm is preferable. For example, when a raw yarn before being twisted is crushed into a few tens of μm by a chopper, a raw yarn powder of a few μm to a few tens of μm (also called cotton powder) is obtained. Then, when this cotton raw yarn powder is added and mixed into an unvulcanized rubber compound to vulcanize and mold the grip, and further the outer surface of the grip is polished, a part of the single fiber is exposed on the outer surface. The outer surface of the grip is ground in order to float the monofilaments that have adhered to or are buried in the outer surface of the grip so that they do not come off. It is possible to expose the fibers.

As a type of single fiber, this cotton raw yarn powder (cotton powder) is the best in terms of feel.

In the grip of the present invention, the monofilament exposed on the outer surface of the grip covers substantially the entire outer surface of the grip, and since the thickness of the monofilament is smaller than that of the thread, it is peculiar to the thread when gripping the grip. There is no sense of incongruity, and because it is thin, it has no directionality, so it is not necessary to consider this. Also, since the monofilament is soft, there is no feeling of discomfort when the grip is held, which is peculiar to beads and is hard. Further, since the single fibers are added and mixed into the unvulcanized rubber compounding prior to the vulcanization molding of the grip, the single fibers are evenly mixed in the wall thickness of the rubber material. Therefore, even if the rubber material on the outer surface and the exposed monofilaments are worn away for a long period of time, the monofilaments in the wall thickness will be exposed one after another, which impairs the anti-slip effect. There is no.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the grip (1) having a cylindrical shape that closes the upper end (2) and gradually expands in diameter toward the upper end (2) is formed entirely of a rubber material. It is vulcanized and molded with a single fiber chopped product of natural fiber or chemical fiber added and mixed into the vulcanized rubber compound, and further, a large number of grooves (4) are formed on its outer surface (3), The outer surface (3) is polished to obtain the outer surface (3).
A part of the monofilament (not shown) is exposed.
Although the addition rate of the single fiber in the unvulcanized rubber can be arbitrarily determined, it is generally preferably 0.5 to 30% by weight.

Fig. 2 shows the test results of the friction coefficient measurement based on JIS D4311. The grip (1) exposed by adding single fiber is 10% compared to the non-added product (standard of coefficient increase rate).
You can see that it is excellent.

[Effect of device]

As described above, the grip for a golf club of the present invention is obtained by adding and mixing single fibers into an unvulcanized rubber compound to vulcanize and mold the grip, and polishing the outer surface of the grip to form the outer surface. Since a part of the monofilament is exposed and it is decided to use a monofilament that is thinner than the thread, there is no unevenness that is peculiar to the thread when gripping the grip, and because it is thin, there is no directionality. You don't have to consider this because. Also, since the monofilament is soft, there is no feeling of discomfort when the grip is held, which is peculiar to beads and is hard. Further, since the single fibers are added and mixed into the unvulcanized rubber compounding prior to the vulcanization molding of the grip, the single fibers are evenly mixed in the wall thickness of the rubber material. Therefore, even if the rubber material on the outer surface and the napped monofilaments are worn away after long-term use, monofilaments within the wall thickness will be exposed one after another, and this will impair the anti-slip effect. There is no. Further, by exposing the monofilament, the entire outer surface of the grip becomes a dull color and gloss is suppressed, so that it is possible to provide a product having a high-class feeling.

[Brief description of drawings]

FIG. 1 is a front view of a golf club grip according to an embodiment of the present invention, and FIG. 2 is a graph showing the relationship between the amount of added single fibers and the friction coefficient increase rate. (1) …… Grip, (2) …… Upper end, (3) …… Outer surface, (4) …… Groove

Claims (2)

[Scope of utility model registration request] 1. A grip for a golf club, which is made of a rubber material and is externally fixed to the upper end of a shaft, by vulcanizing and molding the single fiber into an unvulcanized rubber mixture.
A grip for a golf club, wherein an outer surface of the grip is polished to expose a part of the single fiber on the outer surface. 2. The grip for a golf club according to claim 1, wherein the monofilament is cotton powder.